Seed-separating machine.



E. H. GEISE.

SEED SEPARATING MACHINE.

APPLICATION nun NOV. 9, 1907.

Patented July 13, 1909.

3 SHEETS-SHEET 1.

E. H. GEISB.

SEED SEPARATING MACHINE. APPLICATION FILED NOV. 9, 1907.

E. H. G-EISE. SEED SEPARATING MACHINE. APPLIOATIONFILEDNOXLE),1907;

Patnted July 13, 1909.

3 SHEETS-$HEBT 3.

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UNITED STATES PATENT OFFICE.

EDWARD H. GEISE, OF NEWTON, IOWA.

SEED-SEPARATING MACHINE.

To all whom it may concern:

Be it known that I, EDWARD H. GEIsE,

a citizen of the United States of America, and resident of Newton,Jasper county, Iowa, have invented a new and useful Seed-SeparatingMachine, of which the following is a specification. The object of thisinvention is to provide improved means for cleaning seed and grain, andfor separating one kind of grain from another.

A specific object of this invention is to provide improved means forcleaning wheat, whereby all oats are removed from the wheat in additionto cleaning the same.

My invention consists in the construction, arrangement and combinationof elements hereinafter set forth, pointed out in my claims andillustrated by the accompanying drawing, in which Figure 1 is a sideelevation of the complete machine. Fig. 2 is an opposite side elevationof the complete machine. Fig. 3 is a plan of a battery of screens orsieves removed from the machine. Fig. 4c is a longitudinal section onthe indicated line 4-4: of Fig. Fig. 5 is a detail plan of the uppermostscreen of the battery illustrated in Fig. 3, the apron being rolled backto uncover the face of the screen. Fig. 6 is a detail plan of thelowermost screen of the battery illustrated in Fig. 3. Fig. 7 is adetail section of one of the shoes.

In the construction of the machine as shown the numeral 10 designates abase. Standards 11, 12 and braces 13 are arranged in pairs and rise fromthe base 10. The braces 13 are attached to the upper end portions of thestandards 12. A hopper lt is mounted between and fixed to the upper endportions of the standards 11 and braces 13, and a gate 15 ofconventional form, shown by dotted lines in Fig. 1, is mounted slidinglyin and adapted to close the bottom of said hopper, and said gate isarranged for reciprocation manually by means of a screw 15 A shoe 16 ismounted between the standards and braces and is suspended at one endflexibly on hangers 17 fixed to the upper end portions of the standards11. The end portion of the shoe 16 suspended by the hanger 17 is locatedbeneath the opening in the bottom of the hopper 1A. The shoe 16 isinclined downwardly from its point of support on the standards 11, and

the opposite end portion thereof is carried Specification 01 LettersPatent.

Application filed November 9, 1907.

Patented July 13, 1909.

Serial No. 401,861.

by a rod 18 extending transversely of said shoe and having its endspivoted in levers 19, 20. The levers 19, 20 are arranged vertically andare fulcrumed intermediate of their ends on brackets 21, 22 fixed to thestandards 12.

A shoe 23 is mounted between the standards and braces and is inclined.The upper end portion of the shoe 23 is open and connects with anopening in the lower end portion of the shoe 16. The upper end portionof the shoe 23 is carried by a rod 21 extending transversely thereof andhaving its ends pivoted in the levers 19, 20 beneath the brackets 21,The lower end portion of the shoe 23 is supported by hangers 25, 26(shown by dotted lines in Figs. 1 and 2) flexibly connected to thestandards 11. The lower end portion of the shoe is open, and dischargeslongitudinally of the machine. A blast-fan 2: is mounted on the braces13 and is driven by a shaft 28 journaled on said braces. Pitman 29, 3Oconnect wristpins 31, 32 on the shaft 28 to the lower ends of the levers19, 20. A sprocket wheel 33 on one end portion of the shaft 28 carriesthe wrist-pin 31 and is connected by a chain 34: to a sprocket wheel 35mounted on, a stub axle 36 journaled in the upper end portions of onebrace 13 and one standard 12. A winch or hand-crank 37 is lined to andGX- tends radially of the sprocket wheel 35 and is adapted for manualoperation to rotate said wheel. It will be observed that the sprocketwheel 33 is of materially less diameter than the wheel 35, thusproviding for greatly increased speed of the shaft 28 and fan 27relative to the speed of the handwheel. The fan 27 discharges into theupper end portion of the shoe 23 and is adapted to force a blast of airacross the path of travel. of grain or seed through said shoe, saidblast of air being discharged through an opening 38 laterally of theshoe and carrying with it the chafi' and light seed not otherwisedischarged.

A battery of screens is mounted in the shoe 16 and is held in desiredposition therein by clamping the sides of the through the medium of abolt 39 extending transversely of the shoe, headed on one end andprovided with a nut 40 on the other end. The battery of screens isconstructed as follows: The base screen comprises sidepieces 11, 42,end-bars 43, 4 1 connecting said side-pieces, and a screen bottom orsieve.

shoe together The screen bottom or sieve is constructed preferably of asingle sheet of metal perforated, pierced or apertured on alternatesections or portions thereof, the perforated portions 45 alternatingwith imperforate portions 46, as illustrated in Figs. 4 and 6. Theside-pieces 41, 42 are beveled on their inner faces and serve to guideand direct grain longitudinally of the screen. A cleat 47 is mountedtransversely of the screen and fixed at its ends in notches in the uppermargins of the side-pieces 41, 42, and said cleat is spaced apart fromthe screen bottom or sieve. An apron 48 is fixed to one margin of thecleat 47 and depends therefrom, and extends over a perforated section orstrip 45 of the screen bottom. The apron 48 preferably is made of oiledcloth or similar fabric having a smooth surface adjacent the screenbottom or sieve. A secondary screen indicated generally by the numeral49, of a construction identical with the lowermost screen, is superposedon said lowermost screen and extends at one end beyond one end thereof,in such manner that the imperforate portions-46 of the secondary screenoverlie and are spaced apart from the perforated portions 45 of thelowermost screen. A cleat 47 on the secondary screen carries an apron 48overlying a perforated section 45 of said secondary screen, and saidapron is of the same construction as the apron 48. A third screen,indicated generally by the numeral 50, is superposed on the secondaryscreen and extends at one end over one end of said screen in such mannerthat imperforate section 46 of the third screen overlie and are spacedapart from perforated sections 45 of the secondary screen. A cleat 47011 the third screen carries an apron 48 overlying a perforated section45 of its bottom, and said apron is of the same construction as theother aprons described. An upper screen indicated generally by thenumeral 51 is superposed on the third screen 50 and extends beyond oneend of said screen.

Cleats 52, and 54 are mounted on and transversely of the screen frame 51below the bottom of said screen, and said cleats carry aprons 55, 56 and57 depending therefrom and overlying perforated sections 45 of the thirdscreen. The bottom 58 of the screen 51 is perforated throughoutuniformly. 1L cleat 59 is mounted on and transversely of the initial endportion of the screen frame 51, and an apron 60 of the same constructionas the other aprons described depends from said cleat and overlies theentire perforated bottom. The uppermost screen 51 is shown in detail inFig. 5 with the apron 6O rolled back to expose the screen bottom 58. Itis to be understood that any desired form of screen bottom is to beemployed, dependent on the kind and quality of grain or seed to beseparated, but I have illustrated the form of screen having round holesand perforated in alternate strips as shown, since such form isespecially applicable to the separation of oats from wheat.

In practical use, the grain or seed to be cleaned is deposited in thehopper 14 and discharged through the bottom of said hopper upon theuppermost end of the uppermost screen 51 in such manner that all thegrain or seed flows below the cleat 59 and apron 60 and traverses thelength of the bottom 58. It will be understood that the battery ofscreens is vibrated longitudinally through vibration of the shoe 16, bythe levers 19, 20, and hand mechanism acting on said levers andvibrating the rod 18, and that such vibration causes the grain to travellongitudinally of the screen bottoms. The apron 60 holds the long grainor seed, such as oats, flat to the bottom 58, so it will pass over theround holes, and impedes or retards the progress of all seed along saidbottom, thus insuring the passage through the apertures of said bottomof all of the grain, seed, such as wheat, chaff, and such materialsmaller than the oats, and said cats are discharged from the lowermostend of the uppermost screen upon the apron 48 and are further dischargedfrom said apron to the apron 48 and the apron 48 to the inclined closedend of the shoe 23, and thence upon the fan chamber and into thereceptacle 61 provided therefor. The seed and other substance thatpasses through the perforated bottom 58 of the uppermost screen isreceived on an imperforate portion of the bottom of the screen 50 and onthe aprons 55, 56 and 57, and by them discharged to said bottom. All ofthe smaller portions of seed pass through the perforated portions 45 ofthe bottom of the screen 50, and the larger portions, such as oats,travel along said bottom beneath the aprons and discharge upon the apron48 and are conveyed thence over the same course as above described tothe receptacle 61. The substance that passes through the bottom of thescreen 50 is received on an imperforate portion of the bottom of thescreen 49 and the finer particles thereof discharge through theperforated portions 45 of said bottom, while the larger substancetravels along said screen and beneath the apron 48 and discharges on theapron 48, from whence it is conveyed in the manner above described tothe receptacle 61. The substance that passes through the perforatedportions 45 of the bottom of the screen 49 is received on an imperforateportion of the bottom of the screen 44 and the finer particles thereofdischarge through the perforated portions 45 to the bottom of the shoe16, while the coarser portions travel along said screen bottom beneaththe apron 48 and are conveyed to the receptacle 61 in the manner abovedescribed. The finer substance travels along the bottom of the shoe 16over a screen 62 at the lower end portion of said shoe, and part of suchsubstance discharges through said screen into a spout 63 and is conveyedlaterally of the shoe. A gate 64 is slidingly mounted transversely ofthe shoe, and may be employed to cut off the discharge through thescreen 62 to the spout 63. The remaining substance discharges from theopen end of the shoe 16 into the upper end of the shoe 23 and isdirected by inclined partitions across the blast of air from the fan 27in a conventional manner. The blast of air from the fan 27 forces thechaff and very light particles out of the substance treated through thedischarge port 38, and the remainder of the substance travels along thebottom of the shoe 23. The bottom of the shoe 28 is a screen 65 adaptedto separate very fine particles from the remainder of the substance, andthe fine particles are discharged within the base 10, while the purifiedand cleaned seed, such as wheat, is discharged at the point 66 on thefloor or in a receptacle provided therefor. The battery of screens canbe adjusted to any desired inclination by loosening and tightening thebolt 39 and nut 40. Any desired change may be made in the battery ofscreens, such as by supplying additional screens or using differentsizes, or by removing one or more of them to suit varying kinds of work.

I claim as my invention- 1..In a seed-separating machine, a shoe adaptedto be suspended in inclined position and arranged for oscillation, abattery of screens mounted in said shoe and composed of screen framesand bottoms thereon, the first bottom being perforated throughout, anapron overlying all the perforations of the first bottom, the remainingscreen bottoms formed of alternate perforated and imperforate strips,said frames arranged relative to each other so that the perforated stripof one bottom is overlaid by an imperforate strip of another bottom,aprons carried by the second frame and wholly overlying perforatedstrips and overlapping imperforate strips in the second bottom, andaprons carriedby successive frames and wholly over1y-' ing terminalperforated strips and overlapping terminal imperforate strips of thebottoms in combination with a screen transversely of the lower end ofthe bottom of said shoe, a spout carried by said shoe beneath thescreen, and a gate between said spout and screen and in the same planeas the bottom of the shoe.

2. In a seed-separating machine, the combination of a suitable frame, ahopper thereon, a shoe suspended in inclined position from said frame,levers fulcrumed on said frame and carrying said shoe above the fulcrumsthereof, a batteryof screens in said shoe, said battery comprisingscreen frames and bottoms threon, the first bottom being perforatedthroughout, an apron overlying all the perforations of the first bottom,the remaining screen bottoms formed of alternate perforated andimperforate strips, said frames arranged relative to each other so thatthe perforated strip of one bottom is overlaid by an imperforate stripof another bottom, aprons carried by the second frame and whollyoverlying perforted strips and overlapping imperforate strips in thesecond bottom, and aprons carried by successive frames and whollyoverlying terminal perforated strips and overlapping terminalimperforate strips of the bottoms thereof, another shoe suspended insaid frame beneath and inclined opposite to the first shoe and carriedby said levers below the fulcrums thereof, a screen transversely of thelower end of the bottom of the first shoe, a spout carried by the firstshoe beneath the screen, a gate between said spout and screen and in thesame plane as the bottom of the first shoe, a screen in the lower shoe,a fan communicating with said lower shoe, a shaft carrying said fan,pitmen connecting said shaft and levers below the connections of saidlevers with the lower shoe, a hand wheel and connections between saidhand wheel and the fan-shaft.

Signed by me at Newton, Iowa, this 30th day of September, 1907.

EDWVARD H. GEISE.

W'itnesses GER'rnUDn Gnrsn, GEORGE W. Parsons.

